学科分类

已选分类 医学基础医学病理学与病理生理学
单选题属于I型变态反应的疾病是
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单选题下述蛋白质激素中不属于糖蛋白的是
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单选题下列有关胃溃疡病的描述,哪项是恰当的
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单选题流行性乙型脑炎的病原体属于
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单选题下列哪一种酶是由小肠腺分泌的
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单选题颞动脉炎的病变特点是
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单选题关于下丘脑激素不正确的是
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单选题 附睾精子肉芽肿( ) A、精子自附睾管溢出至周围组织,引起异物反应而致炎性肉芽肿 B、发病多见于老年人 C、肿物质软,有弹性 D、肿物与周围组织粘连,界限不清 E、以上均正确
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单选题与肝癌关系密切的病毒是
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单选题不符合膜性肾小球病的描述是
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单选题"Europe needs to import to export. " That is the slogan of the European Commission's new strategy for securing its economic place in the world, unveiled this week by Peter Mandelson, the European Union's commissioner for trade. The soundbite, of course, gets the economics precisely backwards: exports are the price a country must pay for its imports; Europeans toil away making stuff for others to consume only so they can in turn get their hands on the fruits of foreign labours. But the slogan does capture two awkward truths European exporters must now confront. First, only by offering to open its own markets can the EU hope to persuade foreign countries to open theirs. But with the collapse of the Doha round of trade talks, it is not obvious to whom the Europeans should make their offers. Second, European companies are now part of elaborate global supply chains. Clumsy efforts to protect some of them from foreign competition deprive others of the cheap inputs they need to thrive in world markets. The new trade strategy looks at both of these dilemmas, among others. Though Mr Mandelson insists that he remains wedded to multilateral negotiations at'the World Trade Organisation, he also fancies pursuing a bit on the side with other willing trade partners. The EU will pick its partners according to three criteria: do they offer a big, growing market? Are they cutting deals with America or Japan? And are they guilty of deterring European companies, either repelling them at the border with high tariffs, or bogging them down in cumbersome rules and regulations? The strategy names ASEAN, South Korea, India and Russia as priorities, as well as two regional blocks, Mercosur and the Gulf Co-operation Council, that it is already courting. The EU will reveal its plans for China at the end of the month. The strategy also proposes to look again at how the EU protects its own borders, because its favored weapons are prone to backfire. For example, EU ministers decided this week to slap antidumping duties on leather shoes from Vietnam and China, which threaten shoemakers in Italy, Portugal and Spain. But the duties are opposed by Europe's own retailers and some of its sportswear makers. Letting Asian workers stitch and glue sports shoes makes it possible for such firms to employ Europeans to design and market them. Mr Mandelson presented his strategy as a way to help the EU become more competitive. Opening up to foreign rivals is, of course, an excellent way to foster competition in cloistered domestic industries. A pity then that most of his concrete proposals were about conquering markets abroad, and that the EU is still so ready to raise its defences at home.
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单选题肝细胞性肝癌最常见的转移部位为
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单选题可兴奋细胞在接受一次阈上刺激后兴奋性的周期变化为
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单选题下列不是经典霍奇金淋巴瘤的是
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单选题真核生物识别转录起始点的是
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单选题不符合Burkitt淋巴瘤的描述是
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单选题关于细胞凋亡与坏死的区别,下列哪项是错误的:
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单选题下列各器官血管中,交感缩血管纤维分布密度最高的是
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单选题 破坏动物的视上核,将会出现( ) A、尿量增加,尿浓缩 B、尿量不变,尿高度稀释 C、尿量减少,尿浓缩 D、尿量减少,尿高度稀释 E、尿崩症
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单选题真核生物催化tRNA转录的酶是
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